W: Some index files failed to download, they have been ignored, or old ones used instead.

These are just an example, there same error is coming up on a dozen different ones & obviously the packages the script tries to install fails.It also does it on a manual apt-get dist-upgrade, but only after running the pre-install-from-repo script the first time.

I did a complete rebuild on Wednesday evening thinking I might have an easier time getting my nokia 5800 to work and ran into this same issue. I re-ran the install scripts and evreything seemed to download, went thru the AV wizard but it booted into KDE instead of linuxmce. Rebooted this morning but didn't wait around to see what happened.

You may just want to do a complete rebuild. I may find myself in the same situation this evening.